JavaScript Math cbrt() Method
Below is the example of the Math cbrt() Method.
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- Example:
<script type="text/javascript">document.write("cbrt of 64 : "+ Math.cbrt(64) +"<br>");document.write("cbrt of 27: "+ Math.cbrt(27) +"<br>");document.write("cbrt of 0: "+ Math.cbrt(0) +"<br>");document.write("cbrt of -1: "+ Math.cbrt(-1) +"<br>");document.write("cbrt of -27: "+ Math.cbrt(-27) +"<br>");document.write("cbrt of Infinity : "+ Math.cbrt(Infinity));</script> - Output:
cbrt of 16: 4 cbrt of 27: 3 cbrt of 0: 0 cbrt of -1: -1 cbrt of -27: -3 cbrt of Infinity : Infinity
The Math.cbrt() method is used to find cube root of a number.
Syntax:
Math.cbrt(x)
Parameters: This method accepts a single parameter as mentioned above and described below:
- x: This parameter is a simply a number whose cube root need to be find.
Returns: It returns the cube root of the given number.
Below example illustrate the cbrt() method in JavaScript:
Example: Here cube root of 8 is calculated to 2 because when any 3 times repeated any number is present inside of the cube root then only one number is taken out as the value of the cube root.
∛8
= ∛2*2*2
= 2
Input: Math.cbrt(8) Output : 2
More codes for the above method are as follows:
Program 1: Errors and Exceptions, it is an error case because cube root of complex number can not be found that is why its parameter gives error.
<script type="text/javascript"> // Cube root of complex number can // not be calculated. document.write("cbrt of Complex no : " + Math.cbrt(1 + 2i));</script> |
Output:
Error: Invalid or unexpected token
Program 2: Cube root of string can not be found that is why string parameter of the function gives NaN i.e, not a number. An only integer value can be used as the parameter for the function.
<script type="text/javascript"> // Only number can be used as the parameter // here string as parameter gives NaN i.e, // not a number. document.write("cbrt of a string : " + Math.cbrt("gfg"));</script> |
Output:
cbrt of a string: NaN
Program 3: Whenever we need to get cube root of any number that time we take the help of the Math.cbrt() function in JavaScript.
<script type="text/javascript"> // Here the Math.cbrt() function // calculates cube root for // different numbers taken as // function's parameter. document.write("Output : " + Math.cbrt(125) + "<br>"); document.write("Output : " + Math.cbrt(23) + "<br>"); </script> |
Output:
Output : 5 Output : 2.8438669798515654
Supported Browsers:
- Google Chrome 38.0
- Internet Explorer 12.0
- Firefox 25.0
- Opera 25.0
- Safari 8.0
